9aa2a139cce72141e0775b61f903537835ba99e6d9594bd8b0300cd4d08c5c18

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/10/2024, 17:26

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General

Target

2024-10-09_1e30fc4691bbf3f504d12596faf9df6a_cryptolocker.exe
Size

92KB
MD5

1e30fc4691bbf3f504d12596faf9df6a
SHA1

edd45d45d3d98ea46c201e84598f006e0e2891a4
SHA256

9aa2a139cce72141e0775b61f903537835ba99e6d9594bd8b0300cd4d08c5c18
SHA512

b4896bebf32d0a6075d81ea17c8cbc45d9de92e5d35406c1a6814a264435ea0d2f3e72e9d7987dca8131c1408aa2a61f8cb5d989054f38540af3b701a0870059
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp+ofS:AnBdOOtEvwDpj6zJ

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2024-10-09_1e30fc4691bbf3f504d12596faf9df6a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
628	asih.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1964-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000a000000023c1f-13.dat	upx
behavioral2/memory/628-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/1964-19-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/628-28-0x0000000000500000-0x000000000050F000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-09_1e30fc4691bbf3f504d12596faf9df6a_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 628	1964	2024-10-09_1e30fc4691bbf3f504d12596faf9df6a_cryptolocker.exe	86
PID 1964 wrote to memory of 628	1964	2024-10-09_1e30fc4691bbf3f504d12596faf9df6a_cryptolocker.exe	86
PID 1964 wrote to memory of 628	1964	2024-10-09_1e30fc4691bbf3f504d12596faf9df6a_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-10-09_1e30fc4691bbf3f504d12596faf9df6a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-09_1e30fc4691bbf3f504d12596faf9df6a_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
92KB

MD5
135e2ce8b71af34ac269ae0d249d618a

SHA1
092b8277a1160b9f2f3198af26d66fc16a3b2a0f

SHA256
3a942ee774b6df3bd0cf6bc0beb96fd184ee9f436198f49d22c31469add3c625

SHA512
ef501ae08b624978af27644916a6b2187088e0018d857bdbc447b8f12546fb130d4d50cf58086fc041f6da4798ff0582c6008a2dcd81bd6566cdf1f50a1e196f

Download Submit
memory/628-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/628-22-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/628-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/628-28-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1964-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1964-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1964-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1964-3-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/1964-19-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download